New K-01 mirrorless camera coming

parsons · 01-29-2012, 04:21 PM

Originally posted by gaddigad

What if this K-01 replaces SDM support (via powerzoom contacts) with a new interface? Dual-drive lenses would still AF using the screw drive motor..

exactly, - as i posted a few pages ago.

they would have to have to move the contacts if they are planning to recess lenses very deep inside the camera.

audiobomber · 01-29-2012, 05:47 PM

Originally posted by glanglois

I'm drawing a blank, sorry. Where is there a video DAC?

Sorry, too much audio in my head. I meant ADC.

glanglois · 01-29-2012, 06:05 PM

Originally posted by audiobomber

Sorry, too much audio in my head. I meant ADC.

OK, I thought so but I'm never sure what I'm not certain of. Or something.

I've been thinking all afternoon (mostly) about a three-lens roadmap. Sounds more like a diagram of my (snow-covered) driveway than a roadmap.

bhairavp · 01-29-2012, 06:24 PM

Looks like a Ricoh GXR set

torpesco · 01-29-2012, 11:31 PM

Originally posted by grandnax

Click here

A pic of K-01 was leaked from a Chinese Pentax forum

I havent seen any comments about the picture in the post by "arnold" near the bottom of the first page in that thread. Is it a joke, or...? It's very scary looking.

Quicksand · 01-29-2012, 11:42 PM

Oh yeah, Arnold's picture is in this thread somewhere, but I'm not going back thru 80 pages to find it!

That was a prototype from 1997, or something like that. Don't worry.

thibs · 01-30-2012, 12:29 AM

Not even a prototype AFAICT. Only a hollow, fake device.
Proof of concept if you like.

pingflood · 01-30-2012, 01:35 AM

Originally posted by Asahiflex

Well, all digital cameras will be shelf cameras in ten years, so that's hardly surprising.

Pshaw, my 1DsII turns 8 this year and still kicks most other cameras' butts

fuent104 · 01-30-2012, 01:52 AM

Originally posted by pingflood

Pshaw, my 1DsII turns 8 this year and still kicks most other cameras' butts

The 1DS II is in another league from any other camera from which I've ever seen prints (aside from medium format).

gaddigad · 01-30-2012, 05:56 AM

Originally posted by parsons

exactly, - as i posted a few pages ago.

they would have to have to move the contacts if they are planning to recess lenses very deep inside the camera.

Yea, you may be right. I think only the 17-70mm and DA*55 use exclusively SDM (?)

dgaies · 01-30-2012, 06:02 AM

Originally posted by gaddigad

Yea, you may be right. I think only the 17-70mm and DA*55 use exclusively SDM (?)

The 18-135 also uses an in-body motor only and has no screw drive.

Aku Ankka · 01-30-2012, 08:04 AM

Originally posted by Anvh

This is often given for the reason why K5 preforms better then the D7000 when it comes to the noise.
So are they wrong?

Yes. Those two cameras perform practically identically as DxOMark shows. The differences in their measurements are easily within sample variations.

Regardless of what kind of AA-filter (or no AA-filter) there is, light arrivies to the sensor obeying poisson distribution, thus photon shot noise will be square root of the number of recorded photons.

Aku Ankka · 01-30-2012, 08:06 AM

Originally posted by Kunzite

That's ridiculous. If they would tell me I'd have to buy an adapter to be able to use my lenses (and be aware that some functionality loss could occur),

But what if an adapter in included with every camera, and when attached to the camera, it doesn't look or feel like and adapter, but like a solid part of the camera, and there is no loss of functionality?

Aku Ankka · 01-30-2012, 08:13 AM

Originally posted by audiobomber

Digital signals contain distortions (noise) that are converted to analog in the DAC.

There are no DACs. Signal is never converted to analog form from digital in cameras. All the noise in digital cameras come inside the analog domain (including the ADC). In digital domain the signal is fixed and no longer change.

Aku Ankka · 01-30-2012, 08:19 AM

Originally posted by audiobomber

Sorry, too much audio in my head. I meant ADC.

ADC is the last part of the analog domain, and yes, it can adda noise to the signal. Good examples are Canon's cameras where the ADC is clearly to blame for the stagnating dynamic range on the low ISOs (ie. the DR remains same for a few stops until it starts to drop).

However, it's not part of the digital domain, but analog. After the ADC no noise is added.

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01-29-2012, 04:21 PM	#1186
parsons Inactive Account Join Date: Apr 2010 Location: ENGLAND Posts: 389	Originally posted by gaddigad What if this K-01 replaces SDM support (via powerzoom contacts) with a new interface? Dual-drive lenses would still AF using the screw drive motor.. exactly, - as i posted a few pages ago. they would have to have to move the contacts if they are planning to recess lenses very deep inside the camera.

01-29-2012, 05:47 PM	#1187
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806	Originally posted by glanglois I'm drawing a blank, sorry. Where is there a video DAC? Sorry, too much audio in my head. I meant ADC.

01-29-2012, 06:05 PM	#1188
glanglois Veteran Member Join Date: Aug 2007 Location: Madison, Wis., USA Posts: 1,506	Originally posted by audiobomber Sorry, too much audio in my head. I meant ADC. OK, I thought so but I'm never sure what I'm not certain of. Or something. I've been thinking all afternoon (mostly) about a three-lens roadmap. Sounds more like a diagram of my (snow-covered) driveway than a roadmap.

01-29-2012, 06:24 PM	#1189
bhairavp Veteran Member Join Date: Jan 2010 Location: Mumbai, India Posts: 399	Looks like a Ricoh GXR set

01-29-2012, 11:31 PM	#1190
torpesco Forum Member Join Date: Oct 2010 Posts: 87	Originally posted by grandnax Click here A pic of K-01 was leaked from a Chinese Pentax forum I havent seen any comments about the picture in the post by "arnold" near the bottom of the first page in that thread. Is it a joke, or...? It's very scary looking.

01-29-2012, 11:42 PM	#1191
Quicksand Pentaxian Join Date: Apr 2008 Location: Central Ohio (formerly SF Bay Area) Posts: 1,519	Oh yeah, Arnold's picture is in this thread somewhere, but I'm not going back thru 80 pages to find it! That was a prototype from 1997, or something like that. Don't worry.

01-30-2012, 12:29 AM	#1192
thibs Pentaxian Join Date: Jun 2007 Location: Belgium Photos: Albums Posts: 7,001	Not even a prototype AFAICT. Only a hollow, fake device. Proof of concept if you like.

01-30-2012, 01:35 AM	#1193
pingflood Veteran Member Join Date: Jun 2008 Location: Borås, Sweden Photos: Gallery Posts: 3,169	Originally posted by Asahiflex Well, all digital cameras will be shelf cameras in ten years, so that's hardly surprising. Pshaw, my 1DsII turns 8 this year and still kicks most other cameras' butts

01-30-2012, 01:52 AM	#1194
fuent104 Veteran Member Join Date: Apr 2011 Location: California Photos: Gallery Posts: 1,356	Originally posted by pingflood Pshaw, my 1DsII turns 8 this year and still kicks most other cameras' butts The 1DS II is in another league from any other camera from which I've ever seen prints (aside from medium format).

01-30-2012, 05:56 AM	#1195
gaddigad Junior Member Join Date: Nov 2007 Posts: 48	Originally posted by parsons exactly, - as i posted a few pages ago. they would have to have to move the contacts if they are planning to recess lenses very deep inside the camera. Yea, you may be right. I think only the 17-70mm and DA*55 use exclusively SDM (?)

01-30-2012, 06:02 AM	#1196
dgaies Veteran Member Join Date: Oct 2009 Location: Maryland / Washington DC Posts: 3,917	Originally posted by gaddigad Yea, you may be right. I think only the 17-70mm and DA*55 use exclusively SDM (?) The 18-135 also uses an in-body motor only and has no screw drive.

01-30-2012, 08:04 AM	#1197
Aku Ankka Forum Member Join Date: Dec 2010 Posts: 53	Originally posted by Anvh This is often given for the reason why K5 preforms better then the D7000 when it comes to the noise. So are they wrong? Yes. Those two cameras perform practically identically as DxOMark shows. The differences in their measurements are easily within sample variations. Regardless of what kind of AA-filter (or no AA-filter) there is, light arrivies to the sensor obeying poisson distribution, thus photon shot noise will be square root of the number of recorded photons.

01-30-2012, 08:06 AM	#1198
Aku Ankka Forum Member Join Date: Dec 2010 Posts: 53	Originally posted by Kunzite That's ridiculous. If they would tell me I'd have to buy an adapter to be able to use my lenses (and be aware that some functionality loss could occur), But what if an adapter in included with every camera, and when attached to the camera, it doesn't look or feel like and adapter, but like a solid part of the camera, and there is no loss of functionality?

01-30-2012, 08:13 AM	#1199
Aku Ankka Forum Member Join Date: Dec 2010 Posts: 53	Originally posted by audiobomber Digital signals contain distortions (noise) that are converted to analog in the DAC. There are no DACs. Signal is never converted to analog form from digital in cameras. All the noise in digital cameras come inside the analog domain (including the ADC). In digital domain the signal is fixed and no longer change.

01-30-2012, 08:19 AM	#1200
Aku Ankka Forum Member Join Date: Dec 2010 Posts: 53	Originally posted by audiobomber Sorry, too much audio in my head. I meant ADC. ADC is the last part of the analog domain, and yes, it can adda noise to the signal. Good examples are Canon's cameras where the ADC is clearly to blame for the stagnating dynamic range on the low ISOs (ie. the DR remains same for a few stops until it starts to drop). However, it's not part of the digital domain, but analog. After the ADC no noise is added.